<html>
<script>
function load() {
    var ctx = document.getElementById("canvas").getContext("2d");

    ctx.font = "bold 12px sans-serif";
    ctx.scale(4, 4);
    var str = "HeHeHeHe";
    var x = 0;
    for (var i = 0; i < str.length; ++i) {
        ctx.fillText(str[i], x, 15);
        x += ctx.measureText(str[i]).width;
    }
}
</script>
<body onload="load();">
<canvas id="canvas" width="400" height="200"></canvas>
</body>
</html>
